The leaving date is currently 31 October. Preparations are being made to turn motorways leading to the ports into holding areas for lorries held up by all the new paperwork that exporting to the EU will entail. Supermarkets are stockpiling products with long shelf lifes but shortages of fresh fruit and veg are anticipated. There are already shortages of drugs, including cancer drugs. Prices will go up due to the pound falling. And all this against "the will of the people" (2019) which is why the Brexiters resist holding a second referendum.